Street-sweeper



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'* H. MUELLER, Jr;

STREET SWBEIPBR. l No. 528,548.` Patented Nov. 6, .1894i x RMIII|M` wxH. MUEL-LERgJf.

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STREET SWEEPEB).

No. 528,548. Patented Nov.. 6,1894.

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STREET-SWEEPER.

SPECIFICATION forming part of Letters Patent No. 528,548, dated November6, 1894.

Application filed June 11,1894. Serial No. 514.137. (No model.)

To all whom it may concern:

Be it known that I, HENRY MUELLER, Jr., of the city of St. Louis, Stateof Missouri, have invented certain new and useful Improvements inStreet-Sweeping Machines, of which the following is a full, clear, andexact description, reference being had t-o the accompanying drawings,forming a part hereof.

My invention has relation to improvements in street sweepers and pilersand consists in the novel arrangement and combination of parts morefully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a side elevation of my complete invention.Fig. 2 is a top plan view of the same. Fig. 3 is a vertical longitudinalmiddle section through the receptacle. Fig. 4t is a detail of one end ofthe bottom showing supporting bar and wheel carried thereby. Fig. 5 is asection on the line xof Fig. 3. Fig. 6 is a detail of one end of thereceptacle showing the sliding plate or bottom, supporting bars, trackrails and the wheels on the same. Fig. 7 is a middle sectional elevationof the fork for temporarily retaining the operating lever for thesliding bottom; and Fig. S is a plan view of the re ceptacle detach edshowin gthe preferred form thereof.

The object of my present invention is to construct a street sweeper andpiler wherein the dirt will be swept into a receptacle forming a part ofthe same, and from which the dirt can be dumped at suitable intervalsalong the route of the sweeper, and thus be piled in readiness to betransferred to a ctrt.

In general the invention consists of an open fixed receptacle suspendedfrom the frame of the machine the said receptacle being open at the sideand bottom; of a sliding plate or bottom for the said receptacle adaptedto be withdrawn from under the same and in this act the dirt beingdumped from the receptacle and scraped from off the bottom; of a broomadjacent to the open side end of the same for sweeping dirt onto thesliding bottom.

The invention consists further in special devices for dumping thereceptacle, that is, withdrawing the sliding bottom from under the same;devices for keeping the sliding bottom in either its normal or closedposition and in other details to be now described.

Referring to the drawings, 1 represents the cured to their shaft 4 thelatter carrying at its medial portion a driving gear Wheel 5 whichmeshes with a pinion 6 on a second shaft 7 to the outer ends of whichare secured the sprocket wheels 8. Over each sprocket wheel 8 passes asprocket chain 9 co operating with sprocket wheels 10 secured at eachend of the broom shaft 1l. The broom shaft 11 is mounted betweenthe endsof the arms 12, one end ot' each of which loosely embraces the shaft 7adjacent and interior to the sprocket wheels 8, the said arms being ofsufficient weight to keep the broom against the ground when in itssweeping position.

The open receptacle 13 'is supported from the frame in the rear of themachine by depending hangers or plates 14, one hanger at either end ofthe receptacle, each hanger or plate having a right-angular projectingportion 15 serving to support the rails 16 which are secu red to saidright-angular projections or arms. The sliding plate or bottom 17 ot'the open receptacle is supported and secured by the angle bars 18 ateither end, the upturned ends 19 of the said bars forming bearings forthe wheels 2O which are adapted to roll over the rails 16, the forwardends of the rails having upwardly inclined portions 2l to prevent thebottom from rolling oi at said end.

It is obvious from the construction de' scribed that the false ormovable bottom is free to slide back and forth along the rails carriedat the bottom of the receptacle, and that when said bottom `is withdrawnfrom under the receptacle the dirt will be scraped off from said bottomand the contents of the ally secured to a link 26 whose opposite end ispivotally secured to a casting 27 secured to the forward end of thesliding bottom. The free end of the short arm 24 is pivot ally securedto a rod 28 whose opposite end is pivotally connected to the medialportion of an operating lever 29 suitably curved and which is pivoted ina suitable standard 30 mounted on top of the frame. The said lever 29when depressed will, by reason of the connections described, withdrawthe sliding bottom from under the receptacle, scrape the dirt locatedthereon and allow the contents to dump from the said receptacle, thefull lines in Fig. l showing the parts in this position. The said leverwhen raised (as seen in dotted lines in said figure) will close thebottom, and the parts are retained in this position by resting theoperating end of the lever 29 against a pin 31 passed through suitableopenings of the fork 32 mounted at the front end of the frame.

During the dumping of the receptacle it becomes necessary of course toelevate the broom from od the ground to allow the sweeper to freely passover the pile made by the dumping of the dirtin advance of the saidbroom.

This is accomplished by the following mechanism: Mounted on a standard33 is a pivoted lever 34 whose rear end is secured to a link 35pivotally secured toabent second lever 36 mounted on a standard 37. Thefree rear end of the lever 36 is secured toalink 38 which is pivotallyconnected toa curved arm 36 rigidly secured to a rocking shaft 40mounted in bear ings 4l on top of the framel,said shaft being parallelto the broom shaft 1l. At the outer ends of the rock shaft 40 aresecured the hooks 42 from each of which hangs a chain 43 secured one toeach arm 12 carrying the broom shaft l1. It will be apparent from theconnections described that when the lever 34 has its operating enddepressed the rock shaft 40 will be turned so as to raise the free endsof the hooks 42, and thus raise the broom shaft and the broom 44 carriedthereby, in this way allowing the sweeper to freely pass over the piledumped from the receptacle.

It is obvious that the machine can be altered in details withoutdeparting from the spirit of myinvention and that all equivalents arewithin the scope of my invention.

The gear wheels 5 and 6 have generally a protective casin g securedabout them as shown only in Fig. 3, the object of the casing being tokeep off any dirt and accumulations from said gear wheels.

Having described my invention, what- I claim isl. In a street sweepingmachine, a suitable frame, an open receptacle depending from said frame,and a sliding bottom adapted to co-operate with the lower edge of therear wall of said receptacle for scraping the dirt ocated on saidbottom, substantially as set ort 2. In a street sweeping machine, asuitable frame, an open receptacle depending from the same, a broomlocated adjacent to the open end adapted to sweep dirt into saidreceptacle, and a sliding bottom or plate adapted to (3o-operate withthe lower edge of the rear wall of the receptacle for scraping the dirtlocated on said bottom, substantially as sot forth.

3. In a street sweeping machine, a suitable frame, a receptacle on saidframe, depending hangers for supporting said receptacle, track railscarried by the lower end of said hangers, asliding bottom, rollersconnected to said bottom and moving on said rails, and means oroperating said bottom substantially as set orth.

4. In a street sweeping machine,a suitable receptacle, a sliding bottomor plate co-operating therewith, supporting angle bars embracing saidbottom plate, wheels mounted on said bars adjacent to the side wallsofthe receptacle, depending plates or hangers supporting the receptacleat either end thereof, right-angular projecting arms on said hangers,track rails carried by said right-angular projecting arms, inclinedterminals or ends forming part of said rails, the said wheels adapted topass over said rails, and suitable operating mechanism for sliding saidbottom, substantially as set forth.

5. In a street sweeping machine, a suitable frame, a receptacledepending therefrom having inclined lateral walls, a vertical rear wall,and a sliding bottom co-operating with the lower edges of said walls,substantially as set forth;

6. In a street sweeping machine a receptacle having a suitable slidingbottom, a link secured to the forward end thereof, a pivoted bent leverhaving a long and short arm, the said long arm being pivotally securedto the end of said link, a rod secured to the free end of the short arm,a pivoted operating lever having its medial portion loosely connected tothe opposite end of the said rod, and a suitable fork for securing theoperating end of the operating/lever, substantially as set forth.

7. In a street sweeping machine, asuitable frame, an open receptacledepending from the same, a brush located adjacent to the open end of thereceptacle for sweeping dirt thereinto, suitable running gear for saidbrush, a sliding bottom for said receptacle, and means for supportingand guiding said bottom, substantially as set forth.

In testimony whereof I affix my signature in the presence of twowitnesses.

HENRY MUELLER, JR.

Witnesses:

J AMES J. ODoNoHoE, C. F. KELLER.

ICO

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